Lovely apartment - spacious, well equiped, very reliable wifi internet and fully self contained (including iron, washing/drying machine, cooking facilities and fridge). Gym was handy and the pool was always clean.
It was in a very quiet location, with security guards always downstairs. There was no noise at all, so quite peaceful.
It was not directly next to a supermarket or restaurant area, however they were only 10-15min walk away.
If it was a holiday I may want something in a busier/lively area (Silom etc), but for a work trip it was perfect.
I would happily stay here again on another work trip to Bangkok.